OPA2277P Equivalent & Substitute Parts

Part Overview

The OPA2277P is a general-purpose operational amplifier manufactured by Texas Instruments, featuring two independent circuits in an 8-PDIP through-hole package. This device is classified as Active product status and is RoHS3 compliant. The OPA2277P operates across a wide supply voltage range of 4V to 36V and maintains performance across the industrial temperature range of -40°C to 85°C. Substitute parts are necessary when addressing supply chain constraints, specific performance requirements, or design revisions that demand alternative electrical characteristics or package configurations.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Slew Rate	0.8	V/µs
Gain Bandwidth Product	1	MHz
Current - Input Bias	500	pA
Voltage - Input Offset	10	µV
Current - Supply	790 (x2 Channels)	µA
Current - Output / Channel	35	mA
Voltage - Supply Span (Min)	4	V
Voltage - Supply Span (Max)	36	V
Operating Temperature	-40 to 85	°C
Package / Case	8-DIP (0.300", 7.62mm)	—
Mounting Type	Through Hole	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the OPA2277P is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

Number of circuits: 2 independent amplifier circuits
Package type: 8-DIP through-hole configuration (0.300", 7.62mm)
Supply voltage range: Minimum 4V, Maximum 36V
Operating temperature range: -40°C to 85°C
Amplifier classification: General Purpose

Secondary Compatibility Parameters:

Slew rate: 0.8 V/µs or greater
Gain bandwidth product: 1 MHz or greater
Input bias current: 500 pA or lower
Input offset voltage: 10 µV or lower
Output current per channel: 35 mA or greater
Supply current: 790 µA (x2 Channels) or lower

Parts meeting all primary criteria and maintaining compatibility within secondary parameters are classified as direct substitutes. Parts with deviations in package type, mounting method, or temperature range are classified as functional alternatives requiring design verification.

Parameter Comparison

Parameter	OPA2277P	AD706JNZ	AD708JNZ	LT1112CN8#PBF	NJM4556AD	NJM4580D
Manufacturer	Texas Instruments	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Nisshinbo Micro Devices Inc.	Nisshinbo Micro Devices Inc.
Number of Circuits	2	2	2	2	2	2
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	Audio
Package / Case	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Slew Rate (V/µs)	0.8	0.15	0.3	0.3	3	5
Gain Bandwidth Product (MHz)	1	0.8	0.9	0.75	8	15
Current - Input Bias (pA)	500	50	1000	80	50000	100000
Voltage - Input Offset (µV)	10	30	30	25	500	500
Current - Supply (µA)	790 (x2)	750	4500	350 (x2)	8000	6000
Current - Output / Channel (mA)	35	15	Not Specified	Not Specified	70	50
Voltage - Supply Span (Min)	4 V	4 V	6 V	2 V	4 V	4 V
Voltage - Supply Span (Max)	36 V	36 V	36 V	40 V	36 V	36 V
Operating Temperature	-40 to 85°C	0 to 70°C	0 to 70°C	-40 to 85°C	-40 to 85°C	-40 to 85°C
Product Status	Active	Active	Active	Active	Not For New Designs	Not For New Designs
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant

Engineering Selection Recommendations

Direct Substitutes (Active Product Status, Full Compatibility):

LT1112CN8#PBF is the primary substitute for the OPA2277P. This part maintains identical package configuration (8-DIP through-hole), operating temperature range (-40°C to 85°C), and supply voltage compatibility (2V to 40V). The LT1112CN8#PBF demonstrates superior supply current efficiency at 350 µA (x2 Channels) compared to the OPA2277P at 790 µA (x2 Channels), while maintaining equivalent slew rate and gain bandwidth product performance. RoHS3 compliance and unlimited moisture sensitivity level (MSL 1) are maintained.

AD706JNZ and AD708JNZ are functional substitutes with Active product status. Both maintain 8-DIP through-hole packaging and 4V to 36V supply voltage range. However, AD706JNZ operates within a restricted temperature range (0°C to 70°C), which does not cover the full -40°C to 85°C specification of the OPA2277P. AD708JNZ requires a minimum supply voltage of 6V, exceeding the OPA2277P minimum of 4V. Both parts exhibit reduced slew rate and gain bandwidth product compared to the OPA2277P.

Alternative Substitutes (Not For New Designs Status):

NJM4556AD and NJM4580D are classified as Not For New Designs by their respective manufacturer. While both maintain 8-DIP through-hole packaging, -40°C to 85°C operating temperature, and 4V to 36V supply voltage compatibility, their obsolescence status restricts their application to legacy system maintenance or replacement scenarios only. NJM4556AD exhibits significantly elevated input offset voltage (500 µV) and input bias current (50 nA) compared to the OPA2277P. NJM4580D is classified as an Audio amplifier rather than General Purpose, introducing functional classification mismatch.

Compliance and Certification Status:

All Active product substitutes (LT1112CN8#PBF, AD706JNZ, AD708JNZ) maintain ROHS3 compliance, REACH Unaffected status, and EAR99 ECCN classification consistent with the OPA2277P. Moisture sensitivity level remains at MSL 1 (Unlimited) across all substitutes.

Frequently Asked Questions (FAQ)

Q: Can AD706JNZ replace OPA2277P in all applications?

A: AD706JNZ is not a complete substitute for all applications. While it maintains identical 8-DIP through-hole packaging and 4V to 36V supply voltage range, its operating temperature range is restricted to 0°C to 70°C. Applications requiring operation at -40°C or below, or above 70°C, cannot use AD706JNZ as a direct substitute. Additionally, AD706JNZ exhibits reduced slew rate (0.15 V/µs versus 0.8 V/µs) and lower output current per channel (15 mA versus 35 mA).

Q: What is the primary advantage of LT1112CN8#PBF as a substitute?

A: LT1112CN8#PBF provides superior power efficiency with supply current consumption of 350 µA (x2 Channels) compared to OPA2277P at 790 µA (x2 Channels), representing a 56% reduction in quiescent current. Both parts maintain identical operating temperature range (-40°C to 85°C), 8-DIP through-hole package configuration, and RoHS3 compliance. The LT1112CN8#PBF additionally supports a lower minimum supply voltage of 2V, providing greater design flexibility.

Q: Why are NJM4556AD and NJM4580D marked as Not For New Designs?

A: Both NJM4556AD and NJM4580D carry Not For New Designs product status, indicating that their manufacturers have discontinued active development and recommend against their use in new circuit designs. These parts are reserved for legacy system maintenance and replacement applications only. New designs should utilize Active product status alternatives such as LT1112CN8#PBF or AD708JNZ.

Q: Are there package alternatives to the 8-DIP through-hole configuration?

A: The substitute parts listed maintain 8-DIP through-hole packaging consistent with the OPA2277P. NCS21912DR2G is available as a surface-mount alternative in 8-SOIC package configuration; however, this represents a different mounting technology (Surface Mount versus Through Hole) and requires PCB redesign. NCS21912DR2G additionally features zero-drift amplifier classification and automotive-grade qualification (AEC-Q100), introducing functional and qualification differences from the general-purpose OPA2277P.

Q: What are the key electrical differences between OPA2277P and AD708JNZ?

A: AD708JNZ exhibits higher slew rate (0.3 V/µs versus 0.8 V/µs) and slightly lower gain bandwidth product (0.9 MHz versus 1 MHz). AD708JNZ requires a minimum supply voltage of 6V, whereas OPA2277P operates at 4V minimum. AD708JNZ demonstrates higher input bias current (1 nA versus 500 pA) and restricted operating temperature range (0°C to 70°C versus -40°C to 85°C). Both maintain identical 8-DIP through-hole packaging and 36V maximum supply voltage.

Q: Can NJM4580D be used as a substitute for audio applications?

A: NJM4580D is classified as an Audio amplifier with 15 MHz gain bandwidth product and 5 V/µs slew rate, compared to OPA2277P General Purpose classification with 1 MHz gain bandwidth product and 0.8 V/µs slew rate. While NJM4580D maintains 8-DIP through-hole packaging and -40°C to 85°C operating temperature compatibility, its Not For New Designs status restricts application to legacy system replacement only. The significantly elevated input offset voltage (500 µV versus 10 µV) and input bias current (100 nA versus 500 pA) introduce performance deviations unsuitable for precision applications.

Q: What supply voltage considerations apply when selecting a substitute?

A: OPA2277P operates across 4V to 36V supply range. AD706JNZ and NJM4556AD maintain identical 4V to 36V compatibility. AD708JNZ requires minimum 6V supply, restricting use in 4V to 6V applications. LT1112CN8#PBF supports extended range of 2V to 40V, providing greater flexibility for low-voltage and high-voltage applications. NJM4580D maintains 4V to 36V compatibility. Verify supply voltage requirements of the target application before selecting a substitute part.

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